2.00 x 10^6 e passing through a conductor in 1 millisecond. Electric current through conductor is:
Correct answer: A. 3.2 x 10^-10 A
- A. 3.2 x 10^-10 A
- B. 32.0 x 10^-9 A
- C. 320 x 10^-10 A
- D. 0.320 x 10^-10
Explanation
Charge on an electron is 1.6x10-¹⁹CWhat will be the total charge on n number of electrons?In this case, n=2x10⁶ electrons E=neWhere e is charge on one electron And E is total charge =2x10⁶x1.6x10^-¹⁹ =3.2x10-¹⁹CNow we know:I=Q/t =3.2x10-¹³/1x10-³note:Convert milli sec into sec =3.2x10-¹⁰AA is the correct answer Charge on an electron is 1.6x10-¹⁹CWhat will be the total charge on n number of electrons?In this case, n=2x10⁶ electrons E=neWhere e is charge on one electron And E is total charge =2x10⁶x1.6x10^-¹⁹ =3.2x10-¹⁹CNow we know:I=Q/t =3.2x10-¹³/1x10-³note:Convert milli sec into sec =3.2x10-¹⁰AA is the correct answer Charge on an electron is 1.6x10-¹⁹CWhat will be the total charge on n number of electrons?In this case, n=2x10⁶ electrons E=neWhere e is charge on one electron And E is total charge =2x10⁶x1.6x10^-¹⁹ =3.2x10-¹⁹CNow we know:I=Q/t =3.2x10-¹³/1x10-³note:Convert milli sec into sec =3.2x10-¹⁰AA is the correct answer on an electron is =2x10^6x1.6x10^-19 milli sec into sec
This question appeared on the UHS MDCAT 2017 paper, which you can sit online with every answer explained.
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